WO2006015738A1 - Vehicule automobile equipe d'un systeme de protection a action preventive - Google Patents

Vehicule automobile equipe d'un systeme de protection a action preventive Download PDF

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Publication number
WO2006015738A1
WO2006015738A1 PCT/EP2005/008241 EP2005008241W WO2006015738A1 WO 2006015738 A1 WO2006015738 A1 WO 2006015738A1 EP 2005008241 W EP2005008241 W EP 2005008241W WO 2006015738 A1 WO2006015738 A1 WO 2006015738A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor vehicle
vehicle according
threshold value
vehicle
safety device
Prior art date
Application number
PCT/EP2005/008241
Other languages
German (de)
English (en)
Inventor
Werner Bernzen
Dominic Reutter
Alfred Wagner
Original Assignee
Daimlerchrysler Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Priority to US11/659,090 priority Critical patent/US20090150028A1/en
Priority to EP05769731A priority patent/EP1781502A1/fr
Priority to JP2007524244A priority patent/JP2008508140A/ja
Publication of WO2006015738A1 publication Critical patent/WO2006015738A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204—Actuation parameters of safety arrangents
    • B60R2021/01252—Devices other than bags
    • B60R2021/01265—Seat belts
    • B60R2021/01272—Belt tensioners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R2021/01313—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over monitoring the vehicle steering system or the dynamic control system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R2021/01315—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over monitoring occupant displacement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B60R2021/01322—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value comprising variable thresholds, e.g. depending from other collision parameters

Definitions

  • the invention relates to a motor vehicle with a preventive protective system according to the preamble of the patent claim 1 in more detail defined type.
  • Motor vehicles in particular passenger cars, are in practice equipped with active and passive safety devices which enable the driver to better control his vehicle even in critical situations and thus to avoid accidental vehicle accidents. Also contribute such safety devices in the event of a collision to a reduction in the severity of the accident.
  • preventive protective systems that are already preventively effective before a possible collision and use a so-called pre-crash phase, ie a period from detection of a high probability of collision by corresponding detection systems in the vehicle until the actual impact, by the occupant protection
  • preventive protective systems use information provided by various sensor devices of the motor vehicle. be put.
  • the sensor devices can also be part of an electronic driving stabilization program and / or a component of a distance sensor system.
  • conclusions are then drawn about a possible accident and appropriate measures for conditioning the vehicle, restraint systems for occupants and, if appropriate, protection devices for accident partners, such as pedestrians, are made available to the person concerned impending accident initiated.
  • the motor vehicle here has a reversible occupant protection system which can be activated before a collision time and thereby brought into operative position.
  • driving condition data are recorded by means of a sensor, which are monitored with regard to any emergency braking, any oversteer and any understeer. If emergency braking, oversteering and / or understeering is detected, the occupant protection system is activated, whereby the occupant protection system can only be triggered when a minimum speed is exceeded.
  • the sensor system for detecting the driving state data may include a steering angle sensor, a pedal travel sensor, a brake pressure sensor, a wheel speed sensor, an acceleration sensor and a yaw rate sensor.
  • the invention is therefore based on the object of providing a motor vehicle with a preventively acting protective system of the type mentioned in the introductory part, which prevents an occupant displacement as early as possible.
  • a motor vehicle with a preventive protective system in which a data evaluation and control device of ei ⁇ ner. If a criticality of the driving state is detected, at least one safety device assigned to this driving state is actuated, whereby a theoretical lateral dynamic criticality is detected and at least one assigned safety device is triggered, if at A link between a current steering angle speed and a parameter representing the current driving-dynamic situation exceeds a threshold value has the advantage that steering movements which can cause a lateral dynamic critical driving situation and which justify the triggering of reversible occupant protection systems can already be detected early so that the correspondingly suitable safety devices are already triggered before any significant vehicle longitudinal acceleration and, in particular, vehicle transverse acceleration relocate the inmates.
  • the triggering of the safety devices can be parameterized so that, for example, during a spin of the vehicle with a low coefficient of friction, wherein the occupants are not or only slightly displaced due to low inertia forces, a slower or less forceful occupant conditioning takes place as in a spin of the vehicle with a high coefficient of friction and a correspondingly strong expected occupant shift.
  • a yaw rate and in particular a yaw acceleration can serve as a parameter representing the current driving dynamics situation.
  • a theoretical transverse dynamic criticality can be detected if the product of the steering angular velocity with the yaw acceleration is greater than a correspondingly predetermined threshold value.
  • This threshold is preferably determined as a function of the vehicle speed, the real transverse acceleration, the coefficient of friction and other suitable influencing factors.
  • the parameter representing the current driving-dynamic situation can also be a theoretical lateral acceleration according to Ackermann, a so-called Ackermann lateral acceleration.
  • a theoretical lateral dynamic criticality can again be considered as recognized if the product of the steering angular velocity with the Ackermann lateral acceleration is greater than the predetermined threshold value.
  • a recognized criticality of the driving state can be understood to mean not only a driving state which with high probability leads to an accident of the vehicle, but also a driving state which is caused by a sporty driving style and in which the Control appropriatee ⁇ devices to increase the comfort of the vehicle occupants is appropriate. For example, when cornering a vehicle occupant can be easily pulled into the seat and thereby be better supported on the sides, which page pads of a vehicle seat are better stressed and involved in the fixation of the occupant.
  • control of security devices according to the invention is suitable for all safety devices provided in a vehicle, which are, for example, a reversible belt tensioner, an electric seat adjustment device, retaining cushions that are adjustable in their shape, size and / or position, in particular Knee pads, or other electrically, hydraulically or pneumatically view of an increase in safety adjustablebah ⁇ components can act.
  • a vehicle which are, for example, a reversible belt tensioner, an electric seat adjustment device, retaining cushions that are adjustable in their shape, size and / or position, in particular Knee pads, or other electrically, hydraulically or pneumatically view of an increase in safety adjustablebah ⁇ components can act.
  • the driving state sensory system can comprise a diverse sensor system which is equipped, for example, with a steering angle sensor, a pedal travel sensor, a brake pressure sensor, a wheel speed sensor, an acceleration sensor, a yaw rate sensor and / or a distance sensor.
  • the data evaluation and control device of the preventively effective protective system can be a data processing device of a vehicle stabilization system of the motor vehicle, which is frequently present in particular in modern motor vehicles.
  • a sepa ⁇ rate data processing device can be used.
  • the activation of the corresponding safety device can be further specified and adapted to the respective situation if it takes place as a function of determined physiological parameters of an occupant.
  • These data can be determined by means of a weight detection device connected to the data evaluation and control device and a body size detection device, the weight detection device being integral with a seat occupancy recognition device and the body size detection device, for example with a seat position sensor and a z.
  • B. optical head position determining device may be formed.
  • the position of an occupant in the vehicle can also be determined with such devices, some of which have already been installed in series, which information is advantageous Embodiments of the invention is also used to control the safety device.
  • the vehicle speed or a gradient of the vehicle speed are important input signals for controlling safety devices.
  • activation of certain safety devices can only take place above a certain vehicle speed and the actuation of their actuators can continue until the vehicle speed reaches a very low value of, for example, 3 km / h.
  • a lateral dynamic critical driving situation such as understeer, in which the radius of the predetermined by the steering angle target path is smaller than the radius of the actually traversed path of the vehicle, or an oversteer, in which the radius of the predetermined by the steering angle desired path is greater than that Radius of the actually traversed path is suitably analyzed by means of appropriate acceleration sensors and optionally by means of a yaw sensor Anlagenge Schemebeschleu ⁇ nist, which results from the sum of the vehicle longitudinal acceleration and the vehicle lateral acceleration. If the analysis indicates that the triggering threshold value exceeding the friction value is exceeded, the data evaluation device outputs a collision plausibility, so that the safety devices cooperating with the preventive protection system are activated and conditioned in accordance with the possible accident situation.
  • the steering movement can be used as the only corresponding safety device triggering variables, but also in addition to other known triggering criteria, as described for example in DE 101 21 386 Cl are.
  • inventive control can serve as a software extension of known controls of safety devices.
  • FIGURE of the drawing shows a highly detailed top view of a motor vehicle 1, which can be designed as a passenger car or as a commercial vehicle and which is equipped with a preventive protection system 2.
  • the preventive protection system 2 has a safety sensor 3, which comprises a vehicle environment recognition device 4 and a driving condition sensor 6.
  • the driving state sensor system 6 is designed to detect longitudinally dynamic and lateral-dynamic driving state information, inter alia for detecting emergency and panic braking, oversteering and / or understeering the motor vehicle 1.
  • information or data is used for these purposes, which is arranged by wheel speed sensors 8, 9, 10 and 11, by a wheel arranged in the region of a steering wheel 12
  • Steering angle ⁇ v and a steering angle speed ⁇ v capture ⁇ the sensor 13, from a longitudinal acceleration sensor 14 and a lateral acceleration sensor 15 are supplied.
  • the driving state sensor 6 communicates with a vehicle dynamics functionality 7, such as, for example, an anti-lock braking system and / or an electronic stability program, into which a data evaluation and control device 16 of the preventive protection system 2 is integrated.
  • the driving state sensor 6 for this purpose further important fahrdynamiche
  • Variables such as a vehicle speed v F , a yaw acceleration ⁇ , a front and rear suspension travel, the vehicle level, an accelerator pedal movement, an accelerator pedal position, a brake pedal position, and a brake pedal movement
  • Steering angle ⁇ v and the steering angle speed ⁇ v analyze a Lenk ⁇ angular acceleration. Actual values of these quantities are compared with preset desired values and threshold values.
  • the information determined by the driving state sensor 6 and the setpoint / actual value comparisons are used to activate known systems, such as the anti-lock braking system and / or the electronic stability program, which have the task of the driver of the motor vehicle in driving critical situations Avoidance of an accident.
  • a data comparison takes place, whereby a theoretical querdynamic criticality is recognized and a triggering of the accordingly assigned safety devices 17 takes place if, when linking the current steering angle speed ⁇ v with a parameter representing the current driving dynamic situation, a threshold value S is exceeded.
  • An inventive triggering algorithm provided for the safety devices 17, which is stored in the data output and control device 16, provides that the parameter representing the current dynamic driving situation is the yaw acceleration ⁇ .
  • Yaw acceleration ⁇ is greater than the predetermined Schwellen ⁇ value S is detected on a theoretical lateral dynamics criticality, and the safety devices 17 are controlled.
  • the latter in particular comprise a reversible belt tensioner 18, restraining cushions 19 and an actuation of an electric seat adjustment device 20, wherein the vehicle seats or their components can be brought into an orientation as a function of their occupancy an expected occupant relocation provides the vehicle occupant the highest possible safety.
  • a further algorithm is run through for plausibility, which alone or alternatively to the previously described steering angle velocity ⁇ v can be used with the yaw acceleration ⁇ .
  • the parameter representing the current driving situation is an Ackermann lateral acceleration a yJck , which is calculated according to the formula
  • Threshold value S is, in turn, recognized on a theoretical lateral dynamic criticality and thus on a plausibility of the triggering of the reversible belt tensioner 18.
  • the threshold value S is in each case a function of the vehicle speed v F and / or a gradient of the vehicle speed, a road friction coefficient of a determined lateral acceleration and optionally further suitable parameters.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

L'invention concerne un véhicule automobile, en particulier une voiture particulière, équipé d'un système de protection à action préventive (2) comprenant des dispositifs de sécurité (17) commandés en fonction d'informations enregistrées au moyen de capteurs de condition de roulage (6) et analysées dans un dispositif d'analyse de données et de commande (16), lequel dispositif d'analyse de données et de commande (16) compare les informations enregistrées avec au moins une valeur seuil et commande au moins un dispositif de sécurité (18, 19, 20) associé à une condition de roulage lorsqu'une criticité de cette condition de roulage est identifiée. Selon la présente invention, une criticité dynamique transversale théorique est identifiée et au moins un dispositif de sécurité associé (18, 19, 20) est déclenché si une valeur seuil (S) est dépassée lorsqu'une vitesse angulaire de braquage actuelle (dy) est combinée à un paramètre (?, ay,Ack) représentant la situation dynamique de roulage actuelle.
PCT/EP2005/008241 2004-08-03 2005-07-29 Vehicule automobile equipe d'un systeme de protection a action preventive WO2006015738A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US11/659,090 US20090150028A1 (en) 2004-08-03 2005-07-29 Motor vehicle with a safety system with a preventive action
EP05769731A EP1781502A1 (fr) 2004-08-03 2005-07-29 Vehicule automobile equipe d'un systeme de protection a action preventive
JP2007524244A JP2008508140A (ja) 2004-08-03 2005-07-29 予防的に作動する保護システムを備えた自動車

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004037539.9 2004-08-03
DE102004037539.9A DE102004037539B4 (de) 2004-08-03 2004-08-03 Kraftfahrzeug mit einem präventiv wirkenden Schutzsystem

Publications (1)

Publication Number Publication Date
WO2006015738A1 true WO2006015738A1 (fr) 2006-02-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/008241 WO2006015738A1 (fr) 2004-08-03 2005-07-29 Vehicule automobile equipe d'un systeme de protection a action preventive

Country Status (5)

Country Link
US (1) US20090150028A1 (fr)
EP (1) EP1781502A1 (fr)
JP (1) JP2008508140A (fr)
DE (1) DE102004037539B4 (fr)
WO (1) WO2006015738A1 (fr)

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Also Published As

Publication number Publication date
US20090150028A1 (en) 2009-06-11
EP1781502A1 (fr) 2007-05-09
JP2008508140A (ja) 2008-03-21
DE102004037539B4 (de) 2015-07-16
DE102004037539A1 (de) 2006-02-23

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